./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 69361565d4dab8cbd1398ca297abfe70273a0f8345d662be9468b84c66962c2b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:43,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:43,632 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:48:43,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:43,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:43,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:43,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:43,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:43,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:43,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:43,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:43,699 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:43,699 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:43,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:43,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:48:43,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:48:43,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:43,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:48:43,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:43,704 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:48:43,704 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:48:43,705 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:43,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:43,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:43,707 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:43,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:43,708 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:43,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:43,709 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:48:43,709 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:48:43,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:48:43,711 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:43,712 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:48:43,712 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:43,712 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:43,712 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:43,713 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69361565d4dab8cbd1398ca297abfe70273a0f8345d662be9468b84c66962c2b [2023-11-19 07:48:44,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:44,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:44,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:44,108 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:44,109 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:44,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389-1.i [2023-11-19 07:48:47,515 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:48,083 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:48,084 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389-1.i [2023-11-19 07:48:48,120 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/data/9ed3779c5/7f2cdd05009643f5a0545ca3942564ae/FLAG60765d9e0 [2023-11-19 07:48:48,136 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/data/9ed3779c5/7f2cdd05009643f5a0545ca3942564ae [2023-11-19 07:48:48,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:48,141 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:48,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:48,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:48,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:48,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:48" (1/1) ... [2023-11-19 07:48:48,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f75e83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:48, skipping insertion in model container [2023-11-19 07:48:48,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:48" (1/1) ... [2023-11-19 07:48:48,297 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:50,026 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389-1.i[220074,220087] [2023-11-19 07:48:50,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:50,168 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:50,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; incl %0": "+m" (v->counter)); [5048] [2023-11-19 07:48:50,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; decl %0": "+m" (v->counter)); [5055] [2023-11-19 07:48:50,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5224] [2023-11-19 07:48:50,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5231] [2023-11-19 07:48:50,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5238] [2023-11-19 07:48:50,554 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)__sd->list.next) [6182] [2023-11-19 07:48:50,601 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)__sd->list.next) [6288] [2023-11-19 07:48:50,751 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389-1.i[220074,220087] [2023-11-19 07:48:50,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:50,913 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:50,913 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:50,921 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:50,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50 WrapperNode [2023-11-19 07:48:50,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:50,924 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:50,925 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:50,925 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:50,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:51,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:51,268 INFO L138 Inliner]: procedures = 228, calls = 1718, calls flagged for inlining = 120, calls inlined = 112, statements flattened = 3977 [2023-11-19 07:48:51,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:51,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:51,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:51,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:51,280 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:51,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:51,335 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:51,336 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:51,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:51,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:51,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:51,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:51,620 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:51,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:51,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:51,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:51,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:51,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:51,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:51,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:51,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e27bb6-5916-4b8f-94c0-662cee762062/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:51,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:48:51,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:48:51,733 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 07:48:51,735 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 07:48:51,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:48:51,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:48:51,736 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_initialize_codec [2023-11-19 07:48:51,736 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_initialize_codec [2023-11-19 07:48:51,736 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2023-11-19 07:48:51,736 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2023-11-19 07:48:51,737 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_advise_acquire [2023-11-19 07:48:51,737 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_advise_acquire [2023-11-19 07:48:51,737 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:48:51,737 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:48:51,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:48:51,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:48:51,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-19 07:48:51,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-19 07:48:51,739 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-19 07:48:51,739 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-19 07:48:51,740 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:48:51,740 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:48:51,740 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_scale [2023-11-19 07:48:51,740 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_scale [2023-11-19 07:48:51,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 07:48:51,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 07:48:51,742 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_next [2023-11-19 07:48:51,742 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_next [2023-11-19 07:48:51,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_va_arg [2023-11-19 07:48:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_va_arg [2023-11-19 07:48:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure memory_read [2023-11-19 07:48:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_read [2023-11-19 07:48:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:48:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 07:48:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure cx2341x_update [2023-11-19 07:48:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure cx2341x_update [2023-11-19 07:48:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:48:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure register_read [2023-11-19 07:48:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure register_read [2023-11-19 07:48:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_advise_release [2023-11-19 07:48:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_advise_release [2023-11-19 07:48:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:48:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure cx2341x_ext_ctrls [2023-11-19 07:48:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure cx2341x_ext_ctrls [2023-11-19 07:48:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 07:48:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 07:48:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_get_driver [2023-11-19 07:48:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_get_driver [2023-11-19 07:48:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2023-11-19 07:48:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2023-11-19 07:48:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure register_write [2023-11-19 07:48:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure register_write [2023-11-19 07:48:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_start_codec [2023-11-19 07:48:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_start_codec [2023-11-19 07:48:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:48:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:48:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:48:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:48:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2023-11-19 07:48:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2023-11-19 07:48:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_remove [2023-11-19 07:48:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_remove [2023-11-19 07:48:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure memory_write [2023-11-19 07:48:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_write [2023-11-19 07:48:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-19 07:48:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-19 07:48:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-19 07:48:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-19 07:48:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_queryctrl [2023-11-19 07:48:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_queryctrl [2023-11-19 07:48:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:48:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:48:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_cx88_core [2023-11-19 07:48:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_cx88_core [2023-11-19 07:48:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_cx88_core [2023-11-19 07:48:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_cx88_core [2023-11-19 07:48:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2023-11-19 07:48:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2023-11-19 07:48:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:48:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:48:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:48:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_open [2023-11-19 07:48:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_open [2023-11-19 07:48:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:48:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_stop_codec [2023-11-19 07:48:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_stop_codec [2023-11-19 07:48:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_release [2023-11-19 07:48:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_release [2023-11-19 07:48:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 07:48:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 07:48:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:48:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_log_status [2023-11-19 07:48:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_log_status [2023-11-19 07:48:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_poll [2023-11-19 07:48:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_poll [2023-11-19 07:48:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure wait_ready_gpio0_bit1 [2023-11-19 07:48:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_ready_gpio0_bit1 [2023-11-19 07:48:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_blackbird_probe [2023-11-19 07:48:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_blackbird_probe [2023-11-19 07:48:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_ctrl_query [2023-11-19 07:48:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_ctrl_query [2023-11-19 07:48:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 07:48:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 07:48:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure blackbird_api_cmd [2023-11-19 07:48:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure blackbird_api_cmd [2023-11-19 07:48:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-19 07:48:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-19 07:48:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 07:48:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 07:48:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure mpeg_mmap [2023-11-19 07:48:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure mpeg_mmap [2023-11-19 07:48:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 07:48:51,764 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 07:48:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:48:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-19 07:48:51,765 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-19 07:48:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:51,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:52,585 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:52,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:07,279 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:07,302 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:07,304 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:49:07,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:07 BoogieIcfgContainer [2023-11-19 07:49:07,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:07,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:49:07,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:49:07,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:49:07,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:48" (1/3) ... [2023-11-19 07:49:07,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17731b87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:07, skipping insertion in model container [2023-11-19 07:49:07,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50" (2/3) ... [2023-11-19 07:49:07,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17731b87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:07, skipping insertion in model container [2023-11-19 07:49:07,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:07" (3/3) ... [2023-11-19 07:49:07,334 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-video-cx88-cx88-blackbird-ko--32_7a--d47b389-1.i [2023-11-19 07:49:07,354 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:49:07,354 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:49:07,447 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:07,454 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74b74feb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:07,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:49:07,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 1166 states, 803 states have (on average 1.2889165628891657) internal successors, (1035), 813 states have internal predecessors, (1035), 309 states have call successors, (309), 52 states have call predecessors, (309), 52 states have return successors, (309), 309 states have call predecessors, (309), 309 states have call successors, (309) [2023-11-19 07:49:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 07:49:07,472 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:07,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:07,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:07,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:07,480 INFO L85 PathProgramCache]: Analyzing trace with hash -594404525, now seen corresponding path program 1 times [2023-11-19 07:49:07,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:07,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773138564] [2023-11-19 07:49:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:07,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:08,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:49:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:08,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:49:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:08,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:08,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773138564] [2023-11-19 07:49:08,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773138564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:08,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:08,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:49:08,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017299317] [2023-11-19 07:49:08,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:08,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:49:08,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:08,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:49:08,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:08,397 INFO L87 Difference]: Start difference. First operand has 1166 states, 803 states have (on average 1.2889165628891657) internal successors, (1035), 813 states have internal predecessors, (1035), 309 states have call successors, (309), 52 states have call predecessors, (309), 52 states have return successors, (309), 309 states have call predecessors, (309), 309 states have call successors, (309) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:49:08,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:08,776 INFO L93 Difference]: Finished difference Result 2749 states and 3974 transitions. [2023-11-19 07:49:08,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:49:08,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-19 07:49:08,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:08,816 INFO L225 Difference]: With dead ends: 2749 [2023-11-19 07:49:08,816 INFO L226 Difference]: Without dead ends: 1589 [2023-11-19 07:49:08,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:08,839 INFO L413 NwaCegarLoop]: 1636 mSDtfsCounter, 1503 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:08,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 2356 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:08,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2023-11-19 07:49:09,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1587. [2023-11-19 07:49:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1088 states have (on average 1.2748161764705883) internal successors, (1387), 1096 states have internal predecessors, (1387), 425 states have call successors, (425), 74 states have call predecessors, (425), 73 states have return successors, (421), 421 states have call predecessors, (421), 421 states have call successors, (421) [2023-11-19 07:49:09,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2233 transitions. [2023-11-19 07:49:09,147 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2233 transitions. Word has length 19 [2023-11-19 07:49:09,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:09,147 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2233 transitions. [2023-11-19 07:49:09,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:49:09,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2233 transitions. [2023-11-19 07:49:09,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 07:49:09,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:09,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:09,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:49:09,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:09,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:09,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1247283219, now seen corresponding path program 1 times [2023-11-19 07:49:09,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:09,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259723923] [2023-11-19 07:49:09,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:09,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:49:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:09,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:49:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:09,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:09,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259723923] [2023-11-19 07:49:09,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259723923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:09,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:09,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:49:09,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457654097] [2023-11-19 07:49:09,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:09,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:49:09,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:09,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:49:09,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:09,533 INFO L87 Difference]: Start difference. First operand 1587 states and 2233 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:49:09,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:09,676 INFO L93 Difference]: Finished difference Result 1589 states and 2234 transitions. [2023-11-19 07:49:09,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:49:09,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-19 07:49:09,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:09,690 INFO L225 Difference]: With dead ends: 1589 [2023-11-19 07:49:09,690 INFO L226 Difference]: Without dead ends: 1586 [2023-11-19 07:49:09,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:09,698 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 1615 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:09,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 1626 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:49:09,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2023-11-19 07:49:09,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2023-11-19 07:49:09,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1088 states have (on average 1.2738970588235294) internal successors, (1386), 1095 states have internal predecessors, (1386), 424 states have call successors, (424), 74 states have call predecessors, (424), 73 states have return successors, (421), 421 states have call predecessors, (421), 421 states have call successors, (421) [2023-11-19 07:49:09,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2231 transitions. [2023-11-19 07:49:09,827 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2231 transitions. Word has length 20 [2023-11-19 07:49:09,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:09,827 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 2231 transitions. [2023-11-19 07:49:09,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:49:09,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2231 transitions. [2023-11-19 07:49:09,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 07:49:09,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:09,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:09,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:49:09,829 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:09,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:09,830 INFO L85 PathProgramCache]: Analyzing trace with hash -11681386, now seen corresponding path program 1 times [2023-11-19 07:49:09,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:09,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88773069] [2023-11-19 07:49:09,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:09,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:10,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:49:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:10,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:49:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:10,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:10,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88773069] [2023-11-19 07:49:10,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88773069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:10,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:10,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:49:10,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447243615] [2023-11-19 07:49:10,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:10,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:49:10,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:10,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:49:10,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:10,113 INFO L87 Difference]: Start difference. First operand 1586 states and 2231 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:49:10,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:10,253 INFO L93 Difference]: Finished difference Result 1588 states and 2232 transitions. [2023-11-19 07:49:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:49:10,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-19 07:49:10,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:10,270 INFO L225 Difference]: With dead ends: 1588 [2023-11-19 07:49:10,270 INFO L226 Difference]: Without dead ends: 1585 [2023-11-19 07:49:10,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:10,280 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 1612 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:10,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 1624 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:49:10,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2023-11-19 07:49:10,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2023-11-19 07:49:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1088 states have (on average 1.2729779411764706) internal successors, (1385), 1094 states have internal predecessors, (1385), 423 states have call successors, (423), 74 states have call predecessors, (423), 73 states have return successors, (421), 421 states have call predecessors, (421), 421 states have call successors, (421) [2023-11-19 07:49:10,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2229 transitions. [2023-11-19 07:49:10,411 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2229 transitions. Word has length 21 [2023-11-19 07:49:10,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:10,412 INFO L495 AbstractCegarLoop]: Abstraction has 1585 states and 2229 transitions. [2023-11-19 07:49:10,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:49:10,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2229 transitions. [2023-11-19 07:49:10,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 07:49:10,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:10,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:10,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:49:10,421 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:10,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:10,422 INFO L85 PathProgramCache]: Analyzing trace with hash -362725360, now seen corresponding path program 1 times [2023-11-19 07:49:10,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:10,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199129964] [2023-11-19 07:49:10,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:10,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:49:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:49:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:10,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:10,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199129964] [2023-11-19 07:49:10,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199129964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:10,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:10,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:49:10,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252916285] [2023-11-19 07:49:10,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:10,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:49:10,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:10,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:49:10,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:10,891 INFO L87 Difference]: Start difference. First operand 1585 states and 2229 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:49:11,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:11,042 INFO L93 Difference]: Finished difference Result 1587 states and 2230 transitions. [2023-11-19 07:49:11,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:49:11,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-19 07:49:11,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:11,060 INFO L225 Difference]: With dead ends: 1587 [2023-11-19 07:49:11,060 INFO L226 Difference]: Without dead ends: 1575 [2023-11-19 07:49:11,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:11,063 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 1609 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:11,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1609 Valid, 1623 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:49:11,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2023-11-19 07:49:11,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1575. [2023-11-19 07:49:11,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1080 states have (on average 1.2712962962962964) internal successors, (1373), 1085 states have internal predecessors, (1373), 421 states have call successors, (421), 74 states have call predecessors, (421), 73 states have return successors, (420), 420 states have call predecessors, (420), 420 states have call successors, (420) [2023-11-19 07:49:11,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 2214 transitions. [2023-11-19 07:49:11,216 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 2214 transitions. Word has length 22 [2023-11-19 07:49:11,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:11,217 INFO L495 AbstractCegarLoop]: Abstraction has 1575 states and 2214 transitions. [2023-11-19 07:49:11,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:49:11,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 2214 transitions. [2023-11-19 07:49:11,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 07:49:11,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:11,231 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:11,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:49:11,232 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:11,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:11,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1639788282, now seen corresponding path program 1 times [2023-11-19 07:49:11,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:11,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976617922] [2023-11-19 07:49:11,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:11,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:11,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:49:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:11,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:49:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:11,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:49:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:11,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:49:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:11,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-19 07:49:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:11,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:49:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:11,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:49:11,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:11,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976617922] [2023-11-19 07:49:11,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976617922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:11,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:11,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:49:11,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496447155] [2023-11-19 07:49:11,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:11,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:49:11,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:11,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:49:11,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:49:11,836 INFO L87 Difference]: Start difference. First operand 1575 states and 2214 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-19 07:49:20,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:20,156 INFO L93 Difference]: Finished difference Result 3570 states and 5080 transitions. [2023-11-19 07:49:20,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:49:20,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2023-11-19 07:49:20,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:20,195 INFO L225 Difference]: With dead ends: 3570 [2023-11-19 07:49:20,196 INFO L226 Difference]: Without dead ends: 2005 [2023-11-19 07:49:20,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:49:20,207 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 1378 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 2498 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 3408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 2498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:20,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 2421 Invalid, 3408 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [910 Valid, 2498 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-11-19 07:49:20,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2023-11-19 07:49:20,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1891. [2023-11-19 07:49:20,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1308 states have (on average 1.2813455657492354) internal successors, (1676), 1313 states have internal predecessors, (1676), 509 states have call successors, (509), 74 states have call predecessors, (509), 73 states have return successors, (508), 508 states have call predecessors, (508), 508 states have call successors, (508) [2023-11-19 07:49:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2693 transitions. [2023-11-19 07:49:20,390 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2693 transitions. Word has length 63 [2023-11-19 07:49:20,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:20,391 INFO L495 AbstractCegarLoop]: Abstraction has 1891 states and 2693 transitions. [2023-11-19 07:49:20,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-19 07:49:20,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2693 transitions. [2023-11-19 07:49:20,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 07:49:20,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:20,396 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:20,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:49:20,396 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:20,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:20,397 INFO L85 PathProgramCache]: Analyzing trace with hash 661816488, now seen corresponding path program 1 times [2023-11-19 07:49:20,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:20,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838470066] [2023-11-19 07:49:20,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:20,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:20,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:49:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:49:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:49:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:21,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-19 07:49:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:21,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:49:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:21,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:49:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:49:21,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:21,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838470066] [2023-11-19 07:49:21,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838470066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:21,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:21,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:49:21,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47430776] [2023-11-19 07:49:21,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:21,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:49:21,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:49:21,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:49:21,092 INFO L87 Difference]: Start difference. First operand 1891 states and 2693 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 07:49:28,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:28,647 INFO L93 Difference]: Finished difference Result 1924 states and 2749 transitions. [2023-11-19 07:49:28,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:49:28,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 78 [2023-11-19 07:49:28,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:28,649 INFO L225 Difference]: With dead ends: 1924 [2023-11-19 07:49:28,649 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:49:28,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:49:28,660 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 1224 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 2931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:28,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 1720 Invalid, 2931 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [408 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-11-19 07:49:28,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:49:28,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:49:28,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:28,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:49:28,662 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2023-11-19 07:49:28,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:28,663 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:49:28,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 07:49:28,663 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:49:28,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:49:28,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:49:28,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:49:28,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.